Halesh S wrote:
> I am writing assembly level code for dividing two numbers.
>
> The assembly function i used is
>
> float assm_div(float a1, float b1)
> {
> float res;
> __asm__ ("fld 8(%%ebp)"
> :
> :"a"(a1)
> );
> __asm__ ("fld 12(%%ebp)"
> :
> :"b"(b1)
> );
> __asm__ ("fdiv %st(1), %st");
> __asm__ ("fstp -8(%ebp)"
> );
> __asm__ ("fstp -12(%ebp)"
> );
> return res;
> }
>
> It works fine in Red hat 32 bit Linux, for the same its not working
> Red hat 64 bit Linux, on same hardware.
>
> Is there any changes required for code to make work??
It'll have to be rewritten for x86_64, which has a different instruction
set. But there are several bugs in the i386 version anyway: it works
only by accident. Why do you not do
return a/b;
?
Andrew.
